smsusb:smsusb_onresponse: error, urb status -71, 0 bytes smsusb:smsusb_onresponse: error, urb status -71, 0 bytes smsusb:smsusb_onresponse: error, urb status -71, 0 bytes smsusb:smsusb_onresponse: error, urb status -71, 0 bytes smsusb:smsusb_onresponse: error, urb status -71, 0 bytes WARNING: CPU: 0 PID: 5 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 lib/debugobjects.c:485 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.8.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xf6/0x16e lib/dump_stack.c:118 panic+0x2aa/0x6e1 kernel/panic.c:231 __warn.cold+0x2f/0x35 kernel/panic.c:600 report_bug+0x271/0x2f0 lib/bug.c:198 exc_invalid_op+0x1e4/0x370 arch/x86/kernel/traps.c:235 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:563 RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:485 Code: dd 20 96 fc 85 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 20 96 fc 85 48 c7 c7 60 8a fc 85 e8 02 6d 27 ff <0f> 0b 83 05 7b 51 fe 05 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 RSP: 0018:ffff8881da1d6ea0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81298423 RDI: ffffed103b43adc6 RBP: 0000000000000001 R08: ffff8881da19e400 R09: ffffed103b645ea2 R10: ffff8881db22f50f R11: ffffed103b645ea1 R12: ffffffff870de100 R13: ffffffff81199a20 R14: ffff8881cd908b08 R15: ffff8881d1cfcbd0 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline] debug_check_no_obj_freed+0x2e5/0x449 lib/debugobjects.c:998 slab_free_hook mm/slub.c:1471 [inline] slab_free_freelist_hook mm/slub.c:1507 [inline] slab_free mm/slub.c:3072 [inline] kfree+0x18a/0x300 mm/slub.c:4063 smsusb_term_device+0xd9/0x160 drivers/media/usb/siano/smsusb.c:350 smsusb_init_device+0xa5c/0xae6 drivers/media/usb/siano/smsusb.c:487 smsusb_probe+0xd85/0xe2d drivers/media/usb/siano/smsusb.c:566 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374 really_probe+0x290/0xac0 drivers/base/dd.c:525 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:701 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:807 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x21a/0x390 drivers/base/dd.c:873 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb2b/0x1940 drivers/base/core.c:2680 usb_set_configuration+0xed4/0x1850 drivers/usb/core/message.c:2032 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272 really_probe+0x290/0xac0 drivers/base/dd.c:525 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:701 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:807 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x21a/0x390 drivers/base/dd.c:873 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb2b/0x1940 drivers/base/core.c:2680 usb_new_device.cold+0x5a2/0xfd9 drivers/usb/core/hub.c:2554 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x226d/0x43c0 drivers/usb/core/hub.c:5576 process_one_work+0x965/0x1620 kernel/workqueue.c:2269 worker_thread+0x96/0xe10 kernel/workqueue.c:2415 kthread+0x352/0x460 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Kernel Offset: disabled